Yvonne Choquet-BruhatYvonne Choquet-Bruhat (; born 29 December 1923) is a French mathematician and physicist. She has made seminal contributions to the study of Einstein's general theory of relativity, by showing that the Einstein equations can be put into the form of an initial value problem which is well-posed. In 2015, her breakthrough paper was listed by the journal ''Classical and Quantum Gravity'' as one of thirteen 'milestone' results in the study of general relativity, across the hundred years in which it had been studied.
She was the first woman to be elected to the French Academy of Sciences and is a Grand Officier of the Légion d'honneur. Provided by Wikipedia